American Driver Makes Fun of Bentley Driver Wading Through Flood [Video]
However, seeing this video, it seems that cars can take a lot more than we give them credit for, as both a Bentley GTC and a new BMW 5-Series wade through fairly deep water, without skipping a beat. Keep in mind that this is the US, so the BMW was not diesel-powered, as compression-ignition is more reliable in wet conditions.
Also, the driver and passenger in the car from which the video was shot seem to really enjoy seeing the cars, which are being driven through water so deep, they almost look like actual boats, and their drivers being very focused at getting through. The video seems to have been shot from 'atop an SUV', so the two people in the car had good reason to be laughing, as they were unphased by a little water.